Java :The superclass javax.servlet.http.HttpServlet was not found on the Java Build Path (5solution)

superclass javax.servlet.http.httpservlet was not found

superclass javax.servlet.http.httpservlet not found on the java build pat

superclass javax.servlet.http.httpservlet not found

javax.servlet.http.httpservlet was not found

the superclass javax.servlet.http.httpservlet was not found on the jaca build path problem

dynamic web project superclass javax.servlet.http.httpservlet was not found

eclipse tomcat javax not found